NVIDIA ShadowPlay vs Rewind

NVIDIA ShadowPlay is a free Windows companion app for PC gamers and creators, combining driver updates, game and application optimization, and recording tools in an in-game overlay. Manual recording supports up to 8K HDR at 30 fps or 4K HDR at 120 fps; NVIDIA describes the performance impact as minimal. Automatic Highlights captures key moments, and overlay metrics include FPS, GPU and CPU utilization, FPS 1% Low, and system latency. GeForce RTX 40-series GPU owners can record with AV1 encoding. The app also includes a GPU control center for graphics settings and tuning, Freestyle filters for supported games, and ways to discover and launch selected NVIDIA apps. Requirements include Windows 10 or 11, a GeForce RTX 20, 30, 40, or 50 Series GPU, driver 551.52 or later, 2 GB of system memory, and 600 MB of disk space. Signing in is optional; NVIDIA says login enables users to redeem GPU bundles and rewards.

Rewind is free, open-source gameplay replay software for macOS and Windows. It continuously buffers the previous 15–60 seconds of gameplay and saves that window through a hotkey or when a game reports an event. Buffering can pause while you are at the desktop. Capture settings let you choose a display or application, select audio and microphone sources, configure storage cleanup, and rebind hotkeys. Encoding uses Apple VideoToolbox on macOS; Windows options include NVENC, AMF, Quick Sync, and x264. The clip library groups recordings by game and match, offers in-app playback, and shows event-type badges. Steam achievement detection reads local stats-cache files to save labeled clips without an API key or network connection. The README describes League of Legends tracking through its local Live Client Data API, with feature status varying by section. Integrations use sanctioned data sources or screen capture rather than memory reading, injection, or hooking. Rewind is GPLv3 licensed and labeled alpha; Windows capture is not yet validated on real hardware.